Key Features - Ergonomic Rocking Backrest - Designed to reduce fatigue, the widened backrest rocks from 105° to 120°, providing optimal comfort whether you're working or relaxing. The rocking tension is adjustable to suit your personal preference. Adjustable Height and Easy Movement - The seat height is adjustable from 19" to 22" using the functional lever, allowing you to customize the chair for your desk height and sitting needs. Smooth-rolling casters ensure quiet and effortless movement. Comfortable Sitting Experience - Filled with high-density sponge and upholstered in skin-friendly PU leather, the seat offers excellent comfort. The rubberwood armrests are smooth and curved to match your arms, enhancing the overall seating experience. Sturdy Construction and Perfect Size - Constructed with a high-quality gas lift, a robust 5-star metal base, and a thickened steel frame, this chair supports up to 330 lbs with great stability. Its compact design allows it to be tucked neatly under a